The woman, a resident of suburban Borivali who was accompanied by her son, was detained for nearly 28 hours before being let off around midnight last night.
"Sridevi Santosh Pujari and her son Aryan were allowed to go after Mangalore Police questioned them and recorded their statements. She is not the person Mangalore Police were looking for," said a police officer here.
The woman and her son were scheduled to take a flight to Abu Dhabi, police said.
LOC is usually issued to trace absconding criminals.
As per Mangalore Police records, Ravi Pujari and his wife Sridevi are wanted in the extortion case. Incidentally, Ravi Pujari's son's name is also Aryan.
Mangalore Police were alerted and the duo was handed over to Sahar Airport Police station. A team of Mangalore Police reached Mumbai yesterday and questioned the duo to ascertain if they were related to Pujari, said to be based overseas.
"The Mangalore team questioned the two only to find that the judgement of Mumbai Police was right. Once they were satisfied (about her real identity), they allowed the lady and her son to go home," the officer added.
The duo was detained for over 24 hours after taking permission from a court, police said. As per norms, if a citizen is detained for more than 24 hours without court permission, it would be deemed as illegal.
